Feature: 
1. Listen to songs at 100% volume for 4 hours 
2. The charging box can charge the headset 7 times
3. There are 3 choices of sound effects, which can be switched at will 
4. The charging box is compact and easy to carry 
5. The earphone is small and has no feeling 
6. The earphone charging supports fast charging, charging for 5 minutes can be heard for 2 hours, and it only takes 20 minutes to fully charge
Playing time: [50% volume] 4-5H[with charging case] 
Single net weight: 29.5-100.5g 

Packing list:
1*Tws earbuds
1*USB charging cable
1*User manual